---
layout: "default"
title: "_SequenceType"
description: "Swift documentation for '_SequenceType': This protocol is an implementation detail of SequenceType; do."
keywords: "_SequenceType,protocol,swift,documentation"
root: "/v1.2"
---

<div class="intro-declaration"><code class="language-swift">protocol _SequenceType</code></div>

<div class="discussion comment">
    <p>This protocol is an implementation detail of <code>SequenceType</code>; do
not use it directly.</p>

<p>Its requirements are inherited by <code>SequenceType</code> and thus must
be satisfied by types conforming to that protocol.</p>
</div>

<table class="standard">
<tr>
<th id="inheritance">Inheritance</th>
<td>
<span class="viz"><a href="hierarchy/">View Protocol Hierarchy &rarr;</a></span>
</td>
</tr>



<tr>
<th>Import</th>
<td><code class="language-swift">import Swift</code></td>
</tr>

</table>









